Journal ArticleDOI
High Voltage Power Supply for Ozone Generation Based on Piezoelectric Transformer
J.M. Alonso,C. Ordiz,M.A. Dalla Costa,Javier Ribas,Jesus Cardesin +4 more
- Vol. 45, Iss: 4, pp 1513-1523
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TLDR
In this article, the authors evaluate the possibilities of using piezoelectric transformers (PTs) in the implementation of high-voltage power supplies for ozone generation and propose a new control circuit that allows the ZVS operation.Abstract:
Even though, nowadays, piezoelectric transformers (PTs) are only available with low power rating, there exist several low-power applications of ozone generation in which the use of this novel technology could be advantageous. Hence, the aim of this paper is to evaluate the possibilities of using PTs in the implementation of high-voltage power supplies for ozone generation. First, the possible topologies that can be used to drive the PT are identified. Then, the half-bridge inverter operating under zero-voltage switching (ZVS) is investigated, and the effect of the silent discharge generator (SDG) on the converter operation is analyzed. A new control circuit that allows the ZVS operation is proposed. The control circuit operates in closed loop by measuring the phase between the PT's resonant current and the switching pattern and adjusting the switching frequency to the optimum value to assure ZVS. A laboratory prototype for a 6-W SDG was tested, and obtained experimental results are shown.read more
Citations
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Journal ArticleDOI
Analysis and Implementation of Transformerless LCL Resonant Power Supply for Ozone Generation
TL;DR: In this paper, the analysis and design of an LCL resonant power supply for ozone generation is described. But the main advantage of the proposed topology is the absence of high-voltage transformer; the high voltage gain is achievable by means of double-resonance phenomena.
Journal ArticleDOI
Forward Conduction Mode Controlled Piezoelectric Transformer-Based PFC LED Drive
TL;DR: In this article, a piezoelectric transformer (PT)-based power converters for passive power factor correction (PFC) is proposed. And the proposed FCM control method ensures that the PT is operated at its optimal operation frequency, which ensures soft switching operation and a constant gain.
Journal ArticleDOI
Piezoelectric transformers for low-voltage generation of gas discharges and ionic winds in atmospheric air
Michael J. Johnson,David B. Go +1 more
TL;DR: In this article, piezoelectric transformers are used to amplify a low input applied voltage (<30 V) to generate breakdown in air without the need for conventional high-voltage electrical equipment.
Proceedings ArticleDOI
Low voltage driven dielectric electro active polymer actuator with integrated piezoelectric transformer based driver
TL;DR: In this article, a low voltage solution is developed by integrating the driver into a 110 mm tall cylindrical coreless push-in-lastor actuator to decrease the size of the driver.
Proceedings ArticleDOI
Development of a high-voltage closed-loop power supply for ozone generation
TL;DR: In this paper, the design of an AC-220-voltmains-fed power supply for ozone generation is presented. And the use of a UC3872 integrated circuit is proposed to control both the push-pull inverter and the buck converter, as well as to provide the possibility to protect the power supply in case a short circuit, an open-lamp operation or any other circumstance might occur.
References
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Journal ArticleDOI
A ceramic-based ozonizer using high-frequency discharge
TL;DR: A thin ceramic layer, either cylindrical or planar in form, is sandwiched by a number of parallel strip-like discharge electrodes and a film-like induction electrode. as discussed by the authors applied an AC exciting voltage of frequency 10 kHz and 10 kV peak-to-peak (p-p) to produce a stable high-frequency surface glow discharge for generation of ozone.
Journal ArticleDOI
Analysis, design and experimentation of a high voltage power supply for ozone generation based on the current-fed parallel-resonant push-pull inverter
TL;DR: In this paper, the current-fed parallel-resonant push-pull inverter is proposed as a good option to implement high-voltage high-frequency power supplies for ozone generators.
Proceedings ArticleDOI
Miniaturised battery charger using piezoelectric transformers
TL;DR: In this article, the authors presented the results obtained in a prototype of a miniaturized battery charger for mobile phones due to the reduced size of the piezoelectric transformers, the charger has been introduced in a plug type case, smaller than a matchbox.
Proceedings ArticleDOI
Third order longitudinal mode piezoelectric ceramic transformer and its application to high-voltage power inverter
TL;DR: In this paper, a multilayered piezoelectric ceramic transformer operating in the third order longitudinal mode is applied to light up a color liquid crystal display (LCD).